new flow for Pi provider/model settings

src/servers/api/server-settings/pi-mono.ts

@@ -2,6 +2,7 @@ import { join } from 'node:path';
 import { createRouter } from '../../create-router';
 import { DATA_PATH } from '../../data-path';
 import { syncLocalProvidersToPiConfig } from './sync-pi-config';
+import { invalidateModelCache } from '../pi/list-models';
 
 export const piMonoRouter = createRouter();
 
@@ -214,6 +215,7 @@ piMonoRouter.put('/api-keys', async (ctx) => {
     delete keys[key];
   }
   await writeApiKeys(keys);
+  invalidateModelCache();
   return ctx.json({ ok: true });
 });